ISL23445UFRZ-T7A

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The ISL23445UFRZ-T7A, manufactured by Intersil, is a digital potentiometer. Digital potentiometers provide a circuit with an adjustable resistance without an external resistor, as is the case for analog potentiometers, or components like rheostats. As a potentiometer, the ISL23445UFRZ-T7A has several advantages over analog potentiometers and other components.

The ISL23445UFRZ-T7A is a three-terminal, low power, non-volatile digital potentiometer. It is equipped with an on-chip control logic and a single capacitor. This device is available in both an 8-pin SOIC package and a 10-pin MSOP package. The 8-pin SOIC package has an ESD rating of Class 1A and the 10-pin MSOP package has an ESD rating of Class 2. The ISL23445UFRZ-T7A offers a wide range of resistance values, ranging from 50 Ω to 10 kΩ, with 10-bit resolution and 25-steps.

The ISL23445UFRZ-T7A is a non-volatile device, meaning that it retains its settings even when power is removed or the system it is connected is powered off. This allows it to be used in applications where it must not be reset or lose its setting during a power cycle, such as a switch-mode power supply. It is also designed to provide a high level of accuracy and a very low total harmonic distortion (THD) of 0.05%.

The ISL23445UFRZ-T7A works by varying the resistance between two terminals, called the wiper and the reference. The wiper is the connection to the circuit the resistance is being changed, while the reference is the source of the reference voltage. When a voltage is applied to the control terminal, the resistance between the wiper and the reference terminals changes, this resulting in a change of the resistance. For example, with a supply voltage of 5V, a voltage of 2V applied to the control terminal will produce a resistance of 2.5kohm.

The ISL23445UFRZ-T7A is well suited for applications in data acquisition and instrumentation. It can be used for voltage division and attenuation, as well as for setting or calibrating an analog-to-digital converter (ADC). It is also used in current sensing and in the biasing of transistors and variable capacitors. In addition, it can be used in switch-mode power supplies, as well as for adjusting gain or offset in signal conditioning applications.

In conclusion, the ISL23445UFRZ-T7A digital potentiometer is a powerful and versatile device. It provides a non-volatile, accurate, and low-power solution for a variety of applications. It is easy to use and reliable, and is a great choice for any application where adjustable resistance control is required.

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